Reference of MF Series Gas Cartridges-------------------------------------------------------------------------------------------------------------------MF 3rd ClassCross Reference List of the Filters Type and Color ColeFilter Type of GB2890-2009Type of the Gas Protect by the Filters Specified by New StandardGB2890-1995 Type of the CanisterGB2890-2009 Color Cole of the Filters SpecifiedGB2890-1995 Color Cole of the Filters SpecifiedAUsed to protect against organic gases or vaporsNo: 3BrownBrownBUsed to protect against inorganic gases or vaporsNo: 1GrayGreenEUsed to protect against Co 2 and other acidic gases or vaporsNo: 7YellowYellowKUsed to protect against Ammonia and its organic dervativesNo: 4GreenGrayCOUsed to protect against CONo: 5WhiteWhiteHgUsed to protect against Mercury vaporNo: 6RedBlackH 2 SUsed to protect against Hydrogen sulfideNo: 8BlueBlueTUsed to protect against methanalNo: 9PurpleGreen

List of Performance and Usage of the Filters(Canisters and Cartridges)